83 
AUSTRALIAN SCARITID.L. 
the lateral margin is a row of numerous minute punctures, and within these another row formed 
of six punctures placed at irregular distances, with two other punctures on the disc of each, 
near the extremity. The anterior tibiae are externally 3-dentate, and the middle tibiae armed 
on the outside with a long acute and slightly-curved spur. 
Species IV. (XV ..)—Scarites sculp tilts, Weetw. (PL 23, fig. 1.) C. niger subnitidus, 
pronoto subquadrato, angulis posticis rotundatis, elytris oblongo-ovalibus, singulo striis 
5 profundis simplicihus, apicibus inter strias punctatis. Long. corp. (capite omisso)lin. 7j, 
lat. elytr. fere lin. 3. Mus. Soc. Linn. Lond. (Inhabits Van Diemen’s Land.) 
This species is elongated and black. The head is wanting in the only specimen 1 have seen. 
The pronotum is subquad rate, with the hind angles rounded off, and with a longitudinal central 
sulcus ; the elytra are oblong-subovate, each with fivo deep simple stria?, of which the second 
and fifth and the third and fourth are united together at the tips, where they are dilated 
and where the spaces between the striae are marked with deep impressed round punctures; there 
is also a fine raised submarginal line, outside of which is a row of minute punctures. 
If tlie Carenums with their splendid colours and dilated palpi, 
and the broad forms of the Scarites above described, have not 
sufficiently indicated an Entomological Fauna quite distinct from 
. that of any other portion of the globe, the two insects next to be 
described will, at least, abundantly prove this. It is true that in 
Oxystomus, Oxygnathus, &c., genera belonging to the typical group 
of Scaritidae, we find the mandibles not furnished with teeth; but 
in all other respects these insects do not differ from the others. The 
two insects in question, however, not only possess unarmed mandi¬ 
bles, but the structure of the upper lip, maxillae and labium are 
those of Feronideous insects. It is true that the antennae are 
very short, with the second joint as long as the third; the anterior 
tibiae externally palmate, the intermediate tibiae externally angu- 
lated at the tip, and the abdomen partially pedunculated; in all 
which respects they agree with the absolute characters of the true 
Scaritidae. It is also true that we find a porrected labrum and 
maxillae with the tips acute in Siagona and its allies, but they have 
a depressed body, short dentate mandibles, and securiform labial 
palpi, long antennae, with a short second joint, and simple anterior 
tibiae, &c. Ditomus and its allies, which constitute another aber¬ 
rant section in the family, have also very acutely-lobed maxillae, 
unarmed mandibles, a convex body, and subpedunculated abdomen; 
but these have also long antennae with the second joint short, very 
minute bilobed labrum, and simple fore feet, whilst the remaining 
aberrant section of the family typified by Morio (to which figure 4, 
in plate 23, also belongs), in its flattened form, unpalmated feet, 
dentate mandibles, strongly bilobed labrum, short second joint to 
the antennae, narrowed neck, &c., offers still stronger distinctions 
from the two insects in question, which appear to me to constitute a 
distinct section, as well as genus, in the family, which may be thus 
characterised. 
